Finding the Fourth Proportional to 879,539,652.80, 1,319,458,778.40 and 266,119,006.40
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Solution
The fourth proportional to 879,539,652.80, 1,319,458,778.40 and 266,119,006.40 is: 399,223,682.50
Step by Step Solution
- Step 1: Write the proportion equation
879,539,652.80 : 1,319,458,778.40 = 266,119,006.40 : x - Step 2: Convert to fraction form
879,539,652.80/1,319,458,778.40 = 266,119,006.40/x - Step 3: Cross multiply
879,539,652.80x = 1,319,458,778.40 × 266,119,006.40 - Step 4: Simplify right side
879,539,652.80x = 351,133,059,093,565,824 - Step 5: Solve for x
x = 351,133,059,093,565,824/879,539,652.80 - Step 6: Final answer
x = 399,223,682.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.